1//=====================================================
2// File   :  action_symv.hh
3// Author :  L. Plagne <laurent.plagne@edf.fr)>
4// Copyright (C) EDF R&D,  lun sep 30 14:23:19 CEST 2002
5//=====================================================
6//
7// This program is free software; you can redistribute it and/or
8// modify it under the terms of the GNU General Public License
9// as published by the Free Software Foundation; either version 2
10// of the License, or (at your option) any later version.
11//
12// This program is distributed in the hope that it will be useful,
13// but WITHOUT ANY WARRANTY; without even the implied warranty of
14// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
15// GNU General Public License for more details.
16// You should have received a copy of the GNU General Public License
17// along with this program; if not, write to the Free Software
18// Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.
19//
20#ifndef ACTION_SYMV
21#define ACTION_SYMV
22#include "utilities.h"
23#include "STL_interface.hh"
24#include <string>
25#include "init/init_function.hh"
26#include "init/init_vector.hh"
27#include "init/init_matrix.hh"
28
29using namespace std;
30
31template<class Interface>
32class Action_symv {
33
34public :
35
36  // Ctor
37
38  BTL_DONT_INLINE Action_symv( int size ):_size(size)
39  {
40    MESSAGE("Action_symv Ctor");
41
42    // STL matrix and vector initialization
43    init_matrix_symm<pseudo_random>(A_stl,_size);
44    init_vector<pseudo_random>(B_stl,_size);
45    init_vector<null_function>(X_stl,_size);
46    init_vector<null_function>(resu_stl,_size);
47
48    // generic matrix and vector initialization
49    Interface::matrix_from_stl(A_ref,A_stl);
50    Interface::matrix_from_stl(A,A_stl);
51    Interface::vector_from_stl(B_ref,B_stl);
52    Interface::vector_from_stl(B,B_stl);
53    Interface::vector_from_stl(X_ref,X_stl);
54    Interface::vector_from_stl(X,X_stl);
55
56  }
57
58  // invalidate copy ctor
59
60  Action_symv( const  Action_symv & )
61  {
62    INFOS("illegal call to Action_symv Copy Ctor");
63    exit(1);
64  }
65
66  // Dtor
67  BTL_DONT_INLINE ~Action_symv( void ){
68    Interface::free_matrix(A,_size);
69    Interface::free_vector(B);
70    Interface::free_vector(X);
71    Interface::free_matrix(A_ref,_size);
72    Interface::free_vector(B_ref);
73    Interface::free_vector(X_ref);
74  }
75
76  // action name
77
78  static inline std::string name( void )
79  {
80    return "symv_" + Interface::name();
81  }
82
83  double nb_op_base( void ){
84    return 2.0*_size*_size;
85  }
86
87  BTL_DONT_INLINE  void initialize( void ){
88
89    Interface::copy_matrix(A_ref,A,_size);
90    Interface::copy_vector(B_ref,B,_size);
91    Interface::copy_vector(X_ref,X,_size);
92
93  }
94
95  BTL_DONT_INLINE void calculate( void ) {
96      BTL_ASM_COMMENT("#begin symv");
97      Interface::symv(A,B,X,_size);
98      BTL_ASM_COMMENT("end symv");
99  }
100
101  BTL_DONT_INLINE void check_result( void ){
102    if (_size>128) return;
103    // calculation check
104    Interface::vector_to_stl(X,resu_stl);
105
106    STL_interface<typename Interface::real_type>::symv(A_stl,B_stl,X_stl,_size);
107
108    typename Interface::real_type error=
109      STL_interface<typename Interface::real_type>::norm_diff(X_stl,resu_stl);
110
111    if (error>1.e-5){
112      INFOS("WRONG CALCULATION...residual=" << error);
113      exit(0);
114    }
115
116  }
117
118private :
119
120  typename Interface::stl_matrix A_stl;
121  typename Interface::stl_vector B_stl;
122  typename Interface::stl_vector X_stl;
123  typename Interface::stl_vector resu_stl;
124
125  typename Interface::gene_matrix A_ref;
126  typename Interface::gene_vector B_ref;
127  typename Interface::gene_vector X_ref;
128
129  typename Interface::gene_matrix A;
130  typename Interface::gene_vector B;
131  typename Interface::gene_vector X;
132
133
134  int _size;
135
136};
137
138
139#endif
140